Finding the Fourth Proportional to 819,416,228.40, 1,229,124,342.60 and 569,745,246.60
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Solution
The fourth proportional to 819,416,228.40, 1,229,124,342.60 and 569,745,246.60 is: 854,617,869.90
Step by Step Solution
- Step 1: Write the proportion equation
819,416,228.40 : 1,229,124,342.60 = 569,745,246.60 : x - Step 2: Convert to fraction form
819,416,228.40/1,229,124,342.60 = 569,745,246.60/x - Step 3: Cross multiply
819,416,228.40x = 1,229,124,342.60 × 569,745,246.60 - Step 4: Simplify right side
819,416,228.40x = 700,287,751,676,699,904 - Step 5: Solve for x
x = 700,287,751,676,699,904/819,416,228.40 - Step 6: Final answer
x = 854,617,869.90
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.